Substrate retaining ring



FIG. 1 is a top perspective view of a first embodiment of a substrateretaining ring showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side view thereof, with the ring being radially symmetricalabout a vertical axis;

FIG. 6 is a top perspective view of a second embodiment of a substrateretaining ring showing our new design;

FIG. 7 is a bottom perspective view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof; and,

FIG. 10 is a side view thereof, with the ring being radially symmetricalabout a vertical axis.

The broken lines shown in the drawings represent portions of thesubstrate retaining ring that form no part of the claimed design.

CLAIM The ornamental design for a substrate retaining ring, as shown anddescribed.